Magnetically Actuated Lighting Solutions

Magnetically Actuated Lighting

Allegro MicroSystems, LLC offers a wide variety of lighting solutions. By combining industry-leading Hall-effect sensor technology with proven LED driver technology, Allegro offers LED lighting solutions for automotive, industrial, commercial, and consumer applications.

These product complement Allegro’s portfolio of general-purpose LED drivers and includes fully integrated lighting solutions as well as a collection of magnetic digital position sensor ICs that enable system integrators and designers to create custom lighting solutions to meet virtually any requirement.

Allegro’s LED lighting solutions are simple to design and implement with minimal external circuitry while having the capability to address complex lighting needs.

Key features of our magnetically actuated lighting solutions include:

  • Flexibility: Highly sensitive, omnipolar magnetic switches support flexibility in system design and manufacturing and accommodate large air gaps and mechanical misalignment.
  • Elegance: These simple solutions solve complex lighting challenges in minimal space and with minimal design effort, component-count, and cost; LED drivers with adjustable on/off ramp rates (“theater effect”) provide a high-end feel.
  • Reliability: Hall-effect switches are contactless, can be totally sealed, and do not wear out like mechanical switches; these solid-state solutions are stable over temperature and supply voltage.
  • Ruggedness:  Allegro specializes in automotive-grade (AEC-Q100) solutions for harsh environments with features like reverse-battery protection, short-circuit protection, thermal shutdown, and wide operating temperature and voltage ranges.
Magnetically Actuated LED Drivers
Part Number Topology Number of Channels IOUT per Channel VIN (V) LEDs per Channel Total LEDs Packages
A1569
Linear 1 150 mA 7 to 24 2 to 3 3 eSOIC-8
 

Allegro offers a wide selection of LED drivers in our LED Drivers for Lighting portfolio.

Digital Position Sensors for Magnetically Actuated Lighting
Part Number Sensing |BOP| (G) Operating Voltage (V) ICC typ (mA) Temperature Range (°C) Packages AEC-Q100

A1126

1-D Omnipolar 38 3 to 24 4 mA –40 to 150 SOT23, SIP-3 Yes
A1171
1-D Omnipolar 30 1.6 to 3.5 4 µA –40 to 85 DFN-6 No
A3211, A3212
1-D Omnipolar 40 2.5 to 3.5 4 µA –40 to 85,
–40 to 150
SOT23, SIP-3 Yes
A3213, A3214
1-D Omnipolar 48 2.4 to 5.5 309 µA,
6 µA
–40 to 85,
–40 to 150
SOT23, SIP-3 Yes
New
A1266

3-D Omnipolar 25 2.5 to 5 < 10 µA –40 to 85 SOT23-3, SOT23-5 No
 

This is a selection of products from our portfolio of Magnetic Digital Position Sensor ICs.

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